Minimalism meets performance in the Aerial Cap. Ultra-lightweight fabrics and construction feel lighter than air, yet somehow still provide UPF 50+ sun protection for those long runs and hikes. When you&';re going strong, ventilation and wicking keep you cool and dry. Our stretch comfort sizing ensures that hat-induced headache won&';t sneak up on you and ruin the momentum. Going the distance? Don&';t forget the Aerial. Features and Specs UPF 50+ Sun Rating (mesh vents not rated) 2 A 1/2" Brim Ultra-Lightweight Microfiber Strategic Crown Ventilation Wicking Sweatband Stretch Comfort Adjustable Sizing Weight: 1.9 ounces/53.9 grams Fabric content: 100% polyester, Mesh Ventilation: 100% polyester Washing and care instructions Hand wash cold, line dry. Do not bleach, iron, or dry clean. Packing Instructions: Packs flat, do not fold or crease brim Video